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inessss [21]
3 years ago
9

Someone please help

Biology
1 answer:
prisoha [69]3 years ago
4 0

Answer:

Mantle

Explanation:

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Can y’all help me I’ve gotten to many wrong I can’t fail this exam please help!!!❤️
Margarita [4]

Answer:

D. Solar energy is a renewable resource.

Explanation:

Solar power is energy from the sun that is converted into thermal or electrical energy. Solar energy is the cleanest and most abundant renewable energy source available, and the U.S. has some of the richest solar resources in the world.

6 0
3 years ago
if we use a cscl gradient to test the density of various nucleic acids, both rna and dna-rna hybrids are more density than just
Wewaii [24]

RNA and DNA-RNA hybrids are more dense than simply DNA if the density of different nucleic acids is tested using a CsCl gradient.

The primary technique employed in molecular biology is the extraction of DNA, RNA, and protein. Scientists can separate materials according to size, shape, and density by using density gradient centrifugation. Isopycnic centrifugation, a sort of density gradient centrifugation that Meselson and Stahl developed, employed a cesium chloride solution to separate DNA molecules solely on the basis of density. Because DNA has hydrogen bonds between its strands, which makes it less dense than RNA, RNA has a far larger density than DNA. RNA can be obtained at the test tube's bottom using a CsCl density gradient and high centrifugation, whereas DNA can be recovered in the middle layer.

To learn more about nucleic acids click here brainly.com/question/11309892

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6 0
9 months ago
Growth factors and cytokines both lead to tyrosine phosphorylation through receptors, but they do so through different mechanism
gladu [14]

Answer:

The growth factor receptors have a kinase domain while the Cytokines receptors do not contain a kinase domain as part of their structure.

Explanation:

The two are signaling molecules that control cell activities in some manners, such paracrine, endocrine and autocrine manners.

The receptor kinase domain can be specific for substrate sites in which phosphorylation occurs.

3 0
3 years ago
Which event would MOST LIKELY speed up the process shown in the diagram?
krek1111 [17]

an increase in atmospheric carbon dioxide

Answer: D

5 0
3 years ago
Read 2 more answers
A ______ Membrane allows some, molecules to cross​
krok68 [10]

Answer:

Cell theory

Explanation:

Also known as the cell membrane.

8 0
3 years ago
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